Hi there, I am currently in the tww of my third cycle of ttc at home also using fresh sperm! I think you couldn't really be doing much better at all! The dates of your insem seem perfect, your getting the sperm fresh as fresh (we insem after around 20mins after ejaculation)!!
I can't tell you much about the amounts but if you are getting enough to fill the syringe you're laughing girl!!!! What size syringe are you using? We usually only get in between 0.8-2.3mls worth of sperm, but I have learnt from other success stories in this forum that that is enough! We have noticed slight differences in what the semen actually looks like, when we get a smaller more watery looking donation it has usually been when our donor has been dehydrated over the few days before. Also the thickness you got the other times may have just been because you are getting the donation so quickly, after ejaculation semen is thick and clumpy but after a few minutes it begins to liquify, making it easier to draw up with the syringe!
How did you go with the instead cups? I have heard they can be quite trickey! But if I am not preggas this time I'm thinkijng about giving them a go next time!
Also did you sleep afterwards or remain lying down (hips elevated if desired) for a minimum 40mins? I have been told that helps so thats what I do. Also if you orgasm that helps too!!! Goodluck!! By the dates you gave you most likely ovulated on the 10th June, meaning we are tww buddies, I also ovulated then!!!!